Struct TargetStandards 

pub struct TargetStandards {
    pub header_only: bool,
    pub gnu_extensions: bool,
    pub interface_c: Requirement<CStandard>,
    pub interface_cxx: Requirement<CxxStandard>,
}

One target’s row: the declared interface requirement for each language (spec D9’s ReqOf, header-only inference applied) plus the two per-target flags. A row whose requirements are all unconstrained and whose flags are false serializes as {}.

Fields

header_only: bool

Spec D6 kind: whether the target is header-only. Never enters the satisfaction predicate (D11 consumes only the requirement); carried so index consumers know it without an archive download.

gnu_extensions: bool

The target’s lowering-time GNU-dialect flag (spec D8, invariant I1). Never participates in compatibility; carried so toolchain-aware tooling can surface per-target buildability.

interface_c: Requirement<CStandard>

Declared C interface requirement ReqOf(t, C) (spec D9). Unconstrained is serialized as an omitted language key.

interface_cxx: Requirement<CxxStandard>

Declared C++ interface requirement ReqOf(t, C++) (spec D9).

Trait Implementations

impl Clone for TargetStandards

fn clone(&self) -> TargetStandards

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for TargetStandards

impl Debug for TargetStandards

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TargetStandards

fn default() -> Self

Returns the “default value” for a type.

impl Eq for TargetStandards

impl PartialEq for TargetStandards

fn eq(&self, other: &TargetStandards) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for TargetStandards